Number | Name | Date | Kind |
---|---|---|---|
3629692 | Goyer | Dec 1971 | |
3754181 | Kreitz et al. | Aug 1973 | |
3925718 | Wittlinger | Dec 1975 | |
3952257 | Schade, Jr. | Apr 1976 | |
4032839 | Ahmed | Jun 1977 |
Entry |
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R. J. Widlar, "Low Voltage Techniques", IEEE Journal of Solid-State Circuits, vol. SC-13, No. 6, Dec. 1978, pp. 838-846. |